Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

Lat: 47.92205°NLon: 119.083°WElev: 1593.0ft.

Overcast

36°F

2°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 11 Jan 02:55 AM PST
Extended Forecast for

Grand Coulee WA

  • Overnight

    Overnight: A slight chance of rain before 4am, then a slight chance of rain and snow.  Cloudy, with a low around 33. Southeast wind around 5 mph.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A slight chance of rain and snow before 7am.  Mostly cloudy, with a high near 41. Southeast wind around 6 mph.  Chance of precipitation is 10%.

    High: 41 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. Southeast wind around 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 47. Southeast wind around 6 mph.

    High: 47 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. East wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of rain before 4am, then a slight chance of rain and snow. Cloudy, with a low around 33. Southeast wind around 5 mph. Chance of precipitation is 20%.
Sunday
A slight chance of rain and snow before 7am. Mostly cloudy, with a high near 41. Southeast wind around 6 mph. Chance of precipitation is 10%.
Sunday Night
Mostly cloudy, with a low around 36. Southeast wind around 6 mph.
Monday
Partly sunny, with a high near 47. Southeast wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 38. East wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
2:47 am PST Jan 11, 2026
3am PST Jan 11, 2026-6pm PST Jan 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database